Sariec mcgeough
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The Geological Survey of South Australia is changing its focus to enhance mineral prospectivity and attract more private mining investment. It aims to triple exploration expenditure to $100 million by 2007 and increase mineral production and processing to $4 billion by 2020. The Survey is leveraging government funding through partnerships with universities and research centers. It is applying new techniques like geochemistry, geophysics, and computer modeling to regional surveys to improve understanding of areas like the Central Gawler Gold Province and open up new fronts like the Mt Painter region. Current exploration expenditure is well below the target needed to sustain increased mineral production.
Sariec mcgeough
- 1. South Australia’s Mineral Potential The New Face of the Geological Survey Mark McGeough Branch Manager Geological Survey, PIRSA EXIT
- 2. South Australia Strategic Plan Creating Opportunity Minerals and Exploration Make South Australia a favoured mineral investment destination for private investment by 2010, with exploration expenditure targeted to almost treble to $100 million by 2007 and mineral production and processing to reach $4 billion by 2020 Fostering Creativity • Target 4.8 Cooperative Research Centres, Centres of Excellence Centre for Mineral Exploration under Cover Building Communities • Target 5.11 Regional Infrastructure Support and development in APY Lands • Target 6.1 Aboriginal Wellbeing Reduce the gap between the outcomes for South Australia’s Aboriginal population and those of the rest of South Australia’s population
- 3. Geological Survey Achieving the Strategic Targets Change in Focus for the Geological Survey Branch • Move to enhance prospectivity for Commodities: Au, Cu-Au, Pb-Zn, Ni and PGE’s, diamonds, Iron Ore in SA • Value adding to regional geophysical and geochemical surveys (past and present) • PHD and MSc work carried out by GSB personnel • Increasing use of expertise in the areas of regolith, geophysics, geochemistry and computer modelling • Close interaction with pmd* CRC, GA and CRC LEME • Leveraging Government research money through ARC grants with Adelaide and Monash
- 4. Geological Survey Beyond the Strategic Targets Traditional Work • Support for other Gov’t agencies • Close interaction with Exploration groups-exchange of ideas • Limited areas for regional mapping using a combined approach of regolith, geological and structural mapping • Compilation of exploration data • Contributions to academic journals including MESA journal • Collaboration with Geoscience Australia on craton wide studies • Promotion of SA through PACE/TEISA, conferences and workshops.
- 5. Geological Survey and there is more….….. Other Research (not reported on today) • Marc Davies - new structural models for Iron Ore • Anthony Reid/Liz Jagodzinksi – new geochron database for SA • Wenlong Zang - compiling pmd* CRC data (Tarcoola) • Vicki Stamoulis - producing a state-wide remote sensing data base • Colin Conor - new stratigraphic / ore control system for Curnamona • Greg Jenkins – web enabling technology for SA Geodata • Steve Hore – new spectral dimension for Mt Painter region • Jeff Valentine – strategic review of the hard rock extractive industries • Brian Morris – discovery of new opal fields around Coober Pedy • Michael Szpunar – Link between Gawler and Curnamona (PhD) • Martin Fairclough/Simon Constable – Inco secondment to Thompson • Baohong Hou – new China-Australia scientific knowledge interchange
- 6. PACE Theme 6 Baseline Geochemistry Making Geochemistry Work • Compilation of Calcrete in Central Gawler – Terra Search • Hylogger – Alan Mauger to talk on • More Stream Sediment compilations • Baselines studies with CRC LEME using CHIM, Biota E, Partial Extraction • Regolith Mapping of Bimbowrie • Musgraves, Curnamona and Gawler
- 7. Mt Painter Geochemistry Opening up the Mt Painter area Is this the sample site?
- 8. Mt Painter Geochemistry Opening up the Mt Painter area 0 1 2 kilometres Original 1970’s Stream Sediment Survey Modern Drainage Survey Note: positional distortion in old survey Note: Greater drainage detail in old survey Old stream sediment reconnaissance maps have valuable, detailed results but their value is limited by positional uncertainties and difficulties in using the data because it is not in a usable, digital form
- 9. Mt Painter Geochemistry Opening up the Mt Painter area 0 1 2 kilometres Note: Greatly reduced positional distortion Note: Drainage detail from old survey retained North Flinders Mines Copper 130ppm Lead <20ppm Zinc 20ppm Uranium 11ppm Modern Drainage Survey Revised Stream Sediment Survey Multiple results available on single map 100 to 200 50 to 100 1 to 50 Modern computer techniques allow the data to be retrieved, and positional problems to be minimised leading to an improved, more sophisticated geochemical interpretation.
- 10. Research and Development actively driving research Actively collaborating with the State’s and Countries’ Government Departments, Educational Institutions and Research Centres including: Adelaide University Geoscience Australia CRC LEME NSW Dept. Primary Industries Monash University CSIRO Macquarie University AMIRA International In the Future: Pmd* CRC-Central Gawler Gold Project
- 11. Pmd* CRC - Central Gawler Gold Project Features of known gold deposits Deposit Characteristics • 1680–1715 Ma granitoids (+ mafics + metasediments at Tarcoola). Variety of hosts for most of the Au prospects • Yarlbrinda Shear Zone hosts Tunkillia and Nuckulla Hill, and marks W to E transition to more evolved crust • Mafic dykes and fluid flow controlled by re-activated deep-crustal structures? • ‘Intrusion-related gold’ with alteration dated close to 1588Ma
- 12. Pmd* CRC - Central Gawler Gold Project Aim of the Study Our aim is to identify the factors that could produce a high grade 5 million oz gold deposit in the Central Gawler Gold Province First, “reverse engineer” the known gold deposits to identify thermal, structural and chemical controls on gold formation Second, employ this understanding to make predictions about the most favourable combinations of structure, thermal history (including proximity to felsic intrusions either as heat or fluid sources or both) and chemistry
- 13. 0.0 20.0 40.0 60.0 80.0 100.0 120.0 1995-96 1996-97 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 Mineral Exploration Actual and Target $Million RTF Target Exploration Expenditure $100m by 2007…but Production and Processing will not be sustained by current low exploration expenditure levels
Editor's Notes
- #3: Objective 1 Growing Prospectivity Target 1.5 Economic Growth - Exceed the national economic growth rate within 10 years Target 1.6 Investment - Match or exceed Australia’s ratio of business investment as a % of the economy within 10 years Target 1.12 Exports - Treble the value of South Australia’s export income to $25 billion by 2013. Minerals will contribute through T1.15: Minerals and Exploration Make South Australia a favoured mineral investment destination for private investment by 2010, with exploration expenditure targeted to almost treble to $100 million by 2007 and mineral production and processing to reach $4 billion by 2020
- #7: Note incremental steps in production Cyclical trend in exploration, based around availability of venture capital and commodity prices. 97/98 exploration peak was due particularly to the gold boom, subsequent to The Tunkillia resource discovery There is a relationship between exploration expenditure and production is a
- #8: Note incremental steps in production Cyclical trend in exploration, based around availability of venture capital and commodity prices. 97/98 exploration peak was due particularly to the gold boom, subsequent to The Tunkillia resource discovery There is a relationship between exploration expenditure and production is a
- #9: Note incremental steps in production Cyclical trend in exploration, based around availability of venture capital and commodity prices. 97/98 exploration peak was due particularly to the gold boom, subsequent to The Tunkillia resource discovery There is a relationship between exploration expenditure and production is a
- #10: Note incremental steps in production Cyclical trend in exploration, based around availability of venture capital and commodity prices. 97/98 exploration peak was due particularly to the gold boom, subsequent to The Tunkillia resource discovery There is a relationship between exploration expenditure and production is a